Machine for homogenizing milk, cream, &amp;c.



F. P. GRI BBINS. MACHINE FOR HOMOGENIZING MILK, CREAM, 6w.

. v APPLIOATION mm my 31, 1911. I 030 6499 J Patented June 25, 1912.

3 SHEETS-SHEET 1.

hf W aziflzwa I F. P. GRIBBINS. MACHINE FOB nomoenmzme MILK, 01mm, 6w.

' APPLICATION FILED MAY 31, 1911.

Patented June 25, 1912.

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1 MM 21 F2 6. 3 M23 'F. P. GRIBBINS.

MACHINE FOR HOMOGENIZING' MILK, CREAM, 6w.

APPLICATION TILED MAY 31.1911.

1,030,64L9, I Patented June 25, 1912.

3 SHEBTSSEEET 3.

citizen-of the United States,

it a v 'rnanln r. onrnnrns, or nanny; Conan-carotid.

nacnnrn ron Honoenm'zrna MIL insects.

. s ecification of was Patent. Patentfl J 25 1912.

application filed May 31, 1911. serials.

To all whom, it may mm Be it-hlown that l, FRANK P.

CRIBBINS, a residing at ."Derby, iii-the county of New Haven and see :of Connecticut, have invented, a new and useful Improvement in Machines for Homogenizing Milk, Cream, &c.; and I do hereby declare the following, when taken in connection with the accompanying drawings,

and the letters of reference markedthereon,

to be atoll, clear, and exact description of a'nce' withmy invention. Fig. 2 a broken .tion of one of the three cylinders. Fig. ,5-

view thereof in side elevation. ,3 a broken rear view at the machine, showing the three cylinders bolted together. Fig. 4 an enlar 0* view in vertical transverse seea corresponding view thereof in longitudif nal section. Flg. 6 a reverse plan view of one of the upper valves. Fig. 7 a broken View of the machine in vertical transverse section on the line (itof ig. '1.

My invention relates to an improvement in-machines for homogenizing milk, the object being to simplify their construction and to make them more convenient of access for cleaningand .repair.

ishown, I employ threh With these ends in view, my invention having certain details of construct-ion and combinations of parts as will be hereinafter describedand pointed out in the claim.

In carrying out my invention as herein compression cylinders 2 corresponding td each other in form and size and bolted together side by side so as to form what I may call a gang of. cylinders. Of course the number of these cylinders may be varied according to the in tended capacity of the machine. The cylinders proper are arranged horizontally and formed with integral horizontal flanges 3 by means of which they are bolted to the bed 4:

I oifthe' machine. Each cylinder is furnished with a piston 5 having a packing 6 held in place by a gland Tlocated within a threaded stufing box 8. At their-outer ends the pistonsare provided with slides 9 running in horizontal guides 10. .The said slides 9 are yokesshaped at their outer ends for the piv; otal attachment to them of piston rods 11 the opposite ends'of which are secured to eccentric straps 12. encircling eccentrics 13 mounted upon a' shaft 14 furnished'at one end with a large gear wheel 15 mcshingin-to a pinion l6 mountedupon themain shaft ll which is furnished at .its opposite end 1 with a driving pu1ley'18a'nd a loose pulley 19. I may here remark that the eccentrics 13 arem'ounted upon the shaft 14 in different positions so that they workin-sequence.

At their outer ends .the cylinders-2 are provided with integral vertically arranged chambered heads 20 extending above and below upper valve-chamber 21 opening at its lower end into a lower valverchambcr-22 smaller than the said upper valve-chamber and the cylinders and each containing anopening at its lower end into an inlet passage 23snialler thai'1,the valve-chamber 22.

Inlet pipes 24 screwed into the lower ends of the eads 20 discharge milk into the lower ends of the inlet passages 23', receivin it from asupply-pipeflo. In the upper va ve-' chamber 21 I locate an upper valve 26 for lower valve-chamber 22 I locate a. lower valve 28 for'which a valve-seat 29 is pro.-

which a val'veseat 27 is provided, and in the vided. The stem 30 of the valve 26 extends downward into the chamber 22, while the stem 31 of the valve 28 extends downward into the inlet-passage 23. The upper valve chamber 22 is intersected at a: right angle by the piston c-hamber 32 in the cylindr 2. At its upper end each head is furnished with a cap 33 secured in place by-bolts-34 entering a flange 35 at the upper end of the head. Each head is furnished with an adjustablr' valve-stop rod-36 provided for preventing thenpper valve 26 from being lifted too far by the milk when the same isbeing compressed. l

The/three cylinders 2 are provided upon the opposite faces of their heads 20 with annular assembling-flanges 37 providing for bolting the cylinders together side by side by means of bolts38, one of the-flanges. 37

of each head 20 having a concentric shonla passage 11 concentric with and connecting the said flanges 37'. lVhen the three heads 20 are bolted together, these passages 41 are exactly in line and serve to conduct the milk under pressure, to'a pressure-box 42 having a flange 43 adapting it to. be bolted to the I adjacent flange 37; of the adjacent head 20. I

This pressure-box 42 is designed to contain globule-breaking' devices of any approved I construction, such, for instance, as those 4 shown in my pending application filed Sep-- tember 19, 1910, Serial No. 582,7 26. The pressure-box 42 is threaded forthe applica-- tion ofa cap 44 having a hub 45 receiving a pressure-screw 46 furnished with a handwheel 47cby-which the action of the globule- I breaking devices is regulated, At-the oppo site end of the'passa'ge 41 I locate a reliefvalve 48 operated by a hand-wheel 49 .and havinga discharge pipe 50, the valve 48 being furnished 'with a, flange 51 bolted to the adjacent-flange 37 of the adjacent head 20. It is designed to open the relief valve i 48 whenever air accumulates in undueequantitiesin the cylinders.

Onaccountjof the-relativelocation of the it eccentric 13 upon the shaft 14, the pistons 5 do not operate simultaneously, but one after the other. Therefore as the shaft- 14 revolves, the pistons'5 are moved outward .one after the other in their respective chambers '32. with the .efiect of creating suction enough therein to cause an inflow of milk from the pipe 25'throu'gh the inlet pipes 24 into the valve chambers 22, this suction operatingtolift the lowervalves '28 andto close the upper valves 26. Enough milk will follow the retreating pistons 5 to fill not only [the valve-chambers23 but also the chambers 32 in the cylinders. Now as the shaft 14 revolves, the pistons 5 will be moved one after the other in the opposite'direction, and subject the milk so drawn into the chambers 23 and 32 to tremendous pressure, whereby the lower valves will be firmly seated upon their-seats 29, and the upper valves lifted from their seats 27 until "they are stopped :by-the stop-rods 36. The milk thuscon- I densed flows vthrough the horizontal passage 41 intersecting the chambers 21, and is .forced bythe pressures produced within the machine to assthrough the pressure-box 42 in which its globules are broken up.

Copies of this patent may be obtained for What- I particularly wish to point out is, "that onfaccount of the flanged construction of the-heads of the cylinders, the said heads may be readily-"bolted together side by side so as to form, asit were, a gang, their numbers being increased or decreased according to the desired capacity of the machine. As

thus constructed the cylinders are very ac' cessible since it is only necessary to remove the bolts 38 to get at the respective cylinders for cleaning them, or for any other attention or repair.- v

to a pressure fgage 53 secured to the upper face. of the cap v 1 I claim: u p In a machine for homogenizing milk, the

combination with a plurality of horizontally arranged cylinders each provided with an uprightchambered. head formed on opposite to the outer assembling-flange .of the outer head at one end of the said gang of cylinders, and means for supplying milk to the several cylinders for condensation in them by their respective pistons by which the pres sure is generated within the cylinders for forcing milk through the said globule-break ing devices. i

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses. I

- FRANK P. CRIBBINS Witnesses: i p

' Row. G. Kama,

D.us1' W. Hanna.-

five cents each, by addressing the Commissioner of Yatents Washington, D. 0

. i As shown 1n Figs. (rand 7,the stop-rod 36 is formed with ,a small passage 52 leading 

